Common Acid Reflux Drug Triggered Lupus-Like Rash
A 73-year-old patient developed skin lesions after 10 months of pantoprazole use in a case published August 2026.
Updated on Oct. 14, 2026 in Arthritis
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A medical report from August 2026 detailed how a 73-year-old woman developed drug-induced subacute cutaneous lupus erythematosus (SCLE) following 10 months of taking the acid reflux medication pantoprazole. The patient's condition resolved after stopping the drug and undergoing targeted treatment.
Why it matters
Identifying drug-induced autoimmune reactions is critical for managing chronic conditions, as these rashes can mimic other systemic diseases. This case highlights the importance of reviewing long-term medication use when patients present with persistent, unexplained skin symptoms.
A case report of a 73-year-old woman confirmed drug-induced subacute cutaneous lupus erythematosus following 10 months of pantoprazole use, as verified by skin biopsy and blood tests for anti-Ro antibodies. This follows previous clinical observations, such as a 2014 Danish study of 24 patients.
The players
Leiden University Medical Center
A Dutch academic research institution where physicians conducted the clinical evaluation of the patient.
UK MHRA
The United Kingdom regulator responsible for monitoring drug safety and issuing warnings on potential side effects.
The details
The patient's rash, characterized by ring-shaped, polycyclic lesions on sun-exposed skin, was identified as an autoimmune skin reaction linked to pantoprazole. Doctors treated the inflammation with hydroxychloroquine and a topical steroid while discontinuing the acid reducer. A skin biopsy confirmed damage at the base of the outer skin layer, typical of SCLE, which resolved within four months of stopping the trigger medication.
Timeline
A 2014 Danish study analyzed 24 SCLE patients over a 19-year period.
The UK MHRA published a safety update regarding drug-induced SCLE in 2015.
A detailed case report appeared in the New England Journal of Medicine in August 2026.
Health Landscape
This case aligns with findings from the 2015 UK MHRA safety update on drug-induced SCLE, which established a link between certain medications and autoimmune skin reactions. It reinforces the need for ongoing surveillance of long-term acid-suppressing drug therapy within the broader context of autoimmune medicine.
If you are taking daily acid reflux medication and develop a new, persistent, or ring-shaped rash, especially on sun-exposed skin, it is worth discussing with your doctor. Always mention any long-term prescriptions to your clinician to help them rule out drug-induced reactions when evaluating new symptoms.
The takeaway
Drug-induced subacute cutaneous lupus erythematosus is a rare but possible side effect of certain medications that may mimic other skin conditions. Always maintain a current list of all your medications to share during any skin health evaluation with your physician.
Further reading
For more information on managing inflammatory conditions and autoimmune skin reactions, visit Arthritis.
Source note: This article includes information reported by Medical Daily.
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